Team
Dr. Danielle Oncer, PharmD
Pharmacist · Co-Founder & Chief Wellness Officer
Danielle is a pharmacist (PharmD) and co-founder of Shroombiosis, where she owns the science: reviewing the research, checking the dosing, and making sure every formula is built with integrity.
Her training in pharmacology and pharmacokinetics is exactly what functional-mushroom content usually lacks — a clear-eyed look at what a compound actually does, at what dose, and whether your body can absorb it in the first place. She's the bylined author of most of the Shroombiosis journal.
Outside work, she's happiest with yoga, the outdoors, and animals.
Articles by Danielle Oncer
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What Are Beta-Glucans in Mushrooms? The Active Worth Measuring
Beta-glucans are the cross-mushroom active behind immune support. Here's what they are, why fruiting body beats mycelium-on-grain, and why labels should disclose them.
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Reishi for Calm and Restful Evenings: An Honest Look
Reishi for calm, restful evenings: a caffeine-free wind-down ritual built on a real 500 mg reishi dose — framed honestly, not as a sleep aid.
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Mushrooms for Immune Support: What's Real and What's Hype
A pharmacist on mushrooms for immune support: how beta-glucans engage immune-cell receptors, and what's actually studied for turkey tail, chaga, and reishi.
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Are Functional Mushrooms Safe With Medications? What to Know
Are functional mushrooms safe with medications? A pharmacist's conservative take on blood thinners, immune drugs, pregnancy, and why to ask your clinician first.
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Lion's Mane for Focus and Memory: What the Evidence Supports
What human studies actually show about lion's mane for focus, memory, and mental clarity — separated honestly from the animal NGF research, and anchored to a real dose.
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How to Quit Caffeine Without the Crash: A Gentle Taper Plan
How to quit caffeine without crashing: a pharmacist explains why cold turkey causes withdrawal headaches and a 2–3 week taper that keeps you steady.
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How Much Lion's Mane Per Day? A Transparent Dosing Guide
How much lion's mane per day? The studied range is ~1,000–3,000 mg of fruiting-body powder. A pharmacist on dose, timing, consistency, and underdosing.
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Functional Mushrooms for Women: Calm, Energy & Gut Comfort
Functional mushrooms for women's wellness, explained by a pharmacist — reishi calm, lion's mane and cordyceps for energy and focus, and gut comfort.
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Women's Energy and the Gut-Brain Connection
Women's energy and gut health link through the gut-brain axis. A pharmacist explains how a balanced gut supports steady, caffeine-free energy.
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Why the Coffee Crash Happens (and How to Skip It)
What causes a coffee crash? A pharmacist explains the adenosine rebound and blood-sugar dip behind it — and how caffeine-free, built energy skips it.
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Probiotics for Women: What the Research Supports
Probiotics for women, explained by a pharmacist — what the gut and metabolic research actually shows, and what it honestly doesn't.
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Prebiotics vs. Probiotics vs. Postbiotics, in Plain English
Prebiotics, probiotics, and postbiotics explained simply — what each one is, how they work together, and how to tell them apart on a supplement label.
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Pre, Pro & Postbiotics for Women, Explained
Prebiotics, probiotics, and postbiotics for women explained by a pharmacist — what each one does for gut and metabolic health, with the honest caveats.
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Lion's Mane for Focus at Work: A Calm Look
Lion's mane for focus at work: what the research supports, why it's not a stimulant, and how to fit it into a deep-work day without the crash.
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Gut Health and Your Cycle: A Calm Primer
Gut health and your cycle: a calm, pharmacist-written primer on how the gut microbiome and hormones may interact — honest, structure/function education.
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Fiber for Gut Health: Your Microbiome & Comfort
Fiber for gut health, explained simply: how prebiotic fiber feeds your microbiome to support everyday digestive comfort — and the honest caveats.
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Caffeine-Free Focus for Studying: What Helps
Caffeine-free focus for studying: what the research supports — lion's mane, cocoa flavanols, and a steady gut — minus the jitters and crash.
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Cacao for Mood and Gentle, Caffeine-Free Alertness
Cacao for mood: what the cocoa-flavanol science actually shows, why our cacao is flavor-level, and how it supports a gentle, caffeine-free lift.
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Should You Take a Probiotic? Ask a Pharmacist First
Should you take a probiotic? A pharmacist's calm checklist — pregnancy, medications, conditions, and how to read the label before you start.
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Are Mushrooms Probiotics? Prebiotic vs. Probiotic, Honestly
Are mushrooms probiotics? No. Their beta-glucans act as prebiotics — food for the bacteria you already have. A pharmacist explains the difference.
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Are Functional Mushrooms Safe? A Pharmacist’s Take
Are functional mushrooms safe? A pharmacist's honest take on tolerability, who should check with a professional, and what the research actually shows.
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Lion's Mane Pharmacology: How It Actually Works
A pharmacist explains lion's mane pharmacology for focus at work and study: NGF, hericenones vs. erinacines, the clinical dose, and why your gut decides if it works.
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Your Gut Is Smarter Than You Think: How Mushrooms and Microbes Fuel Real Energy and Focus
Real energy starts in your gut, not your coffee cup. How functional mushrooms and pre/pro/postbiotics work with your microbiome to fuel energy and focus.